Gantry machining center feed-forward double close loop Maglev system fuzzy synchronization control

For Gantry CNC Machining Center single suspension system, adopting a control strategy that combines speed position double close loop control and feed-forward control. The design of this controller can compensate disturbance caused by cutting process, system un-modeled dynamic and the uncertainty of time-varying parameters when it works on the system, ensure the robustness of a single suspension system. For gantry beam adopts the structure which synchronization suspension at the both ends, in order to further suppress the gantry beam tilt of the carrying knife, for double suspension system uses fuzzy synchronization control strategy, by designing fuzzy synchronous controller between the two systems, further overcome suspension height deviation of the double suspension systems, to achieve the synchronization suspension purpose. Simulation results show that this control program guarantee the system stability of synchronization suspension, while it has strong robust, dynamic process of synchronization error is small. It can meet the requirements of high precision of the controlled object.